Single-player games like No.9
Below are 13 single-player Steam games similar to No.9, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like No.9 page.
Ranked picks
- 1

klocki
Single-player alternative to No.9 — playable solo, no multiplayer required. Shares Indie and Casual with No.9.
Minimal puzzle game.
- 2

Hook
Single-player alternative to No.9 — playable solo, no multiplayer required. Shares Indie and Casual with No.9.
HOOK is a short minimal, puzzle game.
- 3

NABOKI
Single-player alternative to No.9 — playable solo, no multiplayer required. Shares Casual with No.9.
Relaxing disassemble puzzle.
- 4

Manifold Garden
Single-player alternative to No.9 — playable solo, no multiplayer required. Shares Indie with No.9.
Rediscover gravity and explore an Escher-esque world of impossible architecture. Witness infinity in first-person and master its rules to solve physics-defying puzzles. Cultivate a garden to open new paths forward, where an eternal expanse awaits.
- 5

LYNE
Single-player alternative to No.9 — playable solo, no multiplayer required. Shares Indie and Casual with No.9.
Deceptively simple. Infinitely complex. LYNE is a minimalist puzzle game that will knot your brain as it calms your soul. Connect the shapes. Fill the board. Lose yourself in the interflowing paths of LYNE.
- 6

🔴 Circles
Single-player alternative to No.9 — playable solo, no multiplayer required. Shares Indie and Casual with No.9.
Circles is an abstract puzzle game that takes your mind off things. No words, no distractions: an invitation to experiment. Relax, let your mind wander and discover the puzzling possibilities of circles.
- 7

Linelight
Single-player alternative to No.9 — playable solo, no multiplayer required. Shares Indie and Casual with No.9.
Linelight is an elegant puzzle game set in a world of lines.
- 8

.projekt
Single-player alternative to No.9 — playable solo, no multiplayer required. Shares Indie and Casual with No.9.
Minimalistic puzzler about silhouettes from creator of Evo Explores
- 9

oO
Single-player alternative to No.9 — playable solo, no multiplayer required. Shares Indie with No.9.
"oO" is a hardcore minimal arcade game.
- 10

Hook 2
Single-player alternative to No.9 — playable solo, no multiplayer required. Shares Casual with No.9.
Get Hook’d on unhooking the hooks again.
- 11

PUSH
Single-player alternative to No.9 — playable solo, no multiplayer required. Shares Indie and Casual with No.9.
Can you push all the buttons?
- 12

Up Left Out
Single-player alternative to No.9 — playable solo, no multiplayer required. Shares Indie with No.9.
A puzzle game about unlocking stuff.
- 13

Zerko
Single-player alternative to No.9 — playable solo, no multiplayer required. Shares Indie and Casual with No.9.
A puzzle game filled with shapes, numbers, and a straightforward goal: make every number zero.